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#include <ClanLib/core.h>
#include <ClanLib/application.h>
#include <ClanLib/display.h>
class Example2D : public CL_ClanApplication
{
public:
// This function returns the name of your game
virtual char *get_title()
{
return "ClanLib 2D API example";
}
virtual int main(int argc, char **argv)
{
// Create a console window for text-output if not available
CL_ConsoleWindow console("Console");
console.redirect_stdio();
try
{
// Initialize ClanLib base components
CL_SetupCore::init();
// Initialize the ClanLib display component
CL_SetupDisplay::init();
// Set a videomode - 640x480x16bpp
// false means that this program should not run full-screen
CL_Display::set_videomode(640, 480, 16, false);
// Load a surface from a targa-file using the targa-file
// image loader. The targa-file image loader creates a
// surface from "logo.tga".
CL_Surface *sur_logo = CL_TargaProvider::create("logo.tga", NULL);
double sin_count = 0.0f;
float ypos = 0.0f;
float ydir = 3.0f;
// Run until someone presses escape
while (!CL_Keyboard::get_keycode(CL_KEY_ESCAPE))
{
// Clear the display in a dark blue nuance
// The four arguments are red, green, blue and alpha
// All color nuances in ClanLib are measured in the interval 0->1
CL_Display::clear_display(0, 0, 0.2f, 1.0f);
ypos += ydir;
if (ypos+200 >= CL_Display::get_height() || ypos < 0)
{
ydir *= -1;
}
CL_Display::draw_line(0, (int)(ypos-1), CL_Display::get_width(), (int)(ypos-1), 1, 0, 0);
CL_Display::draw_line(0, (int)(ypos+198), CL_Display::get_width(), (int)(ypos+198), 1, 0, 0);
// Show the logo surface.
// Use the get_width() and get_height() functions of both
// CL_Display and CL_Surface, to show the surface in the bottom right corner
sur_logo->put_screen(
CL_Display::get_width()-sur_logo->get_width(),
CL_Display::get_height()-sur_logo->get_height());
CL_Display::push_clip_rect(CL_ClipRect(0, (int)(ypos), CL_Display::get_width(), (int)(ypos+198)));
// Draw a rectangle in the center of the screen
// going from (240, 140) -> (440, 340) _not_ including the
// pixels in the right-most column and bottom-most row (440, 340)
CL_Display::fill_rect(240, 140, 440, 340, 1.0f, 1.0f, 1.0f, 1.0f);
// Frame the rectangle with red lines
CL_Display::draw_line(240, 140, 440, 140, 1.0f, 0, 0);
CL_Display::draw_line(240, 340, 440, 340, 1.0f, 0, 0);
CL_Display::draw_line(240, 140, 240, 340, 1.0f, 0, 0);
CL_Display::draw_line(440, 140, 440, 340, 1.0f, 0, 0);
// Show a few alpha-blending moving rectangles that moves in circles
float x = cos(sin_count)*120;
float y = sin(sin_count)*120;
sin_count += 0.05;
CL_Display::fill_rect((int)(320+x-30), (int)(240+y-30), (int)(320+x+30), (int)(240+y+30), 0, 1, 0, 0.5);
x = cos(sin_count+3.14159)*120;
y = sin(sin_count+3.14159)*120;
CL_Display::fill_rect((int)(320+x-30),(int)(240+y-30),(int)(320+x+30),(int)(240+y+30), 1, 1, 0, 0.5);
CL_Display::pop_clip_rect();
// Flip the display, showing on the screen what we have drawed
// since last call to flip_display()
CL_Display::flip_display();
// This call updates input and performs other "housekeeping"
// call this each frame
CL_System::keep_alive();
}
//Clean-up and remove the logo from memory
delete sur_logo;
// De-Initialize the ClanLib display component
CL_SetupDisplay::deinit();
// De-Initialize ClanLib base components
CL_SetupCore::deinit();
}
catch(CL_Error error)
{
std::cout << "Exception caught : " << error.message.c_str() << std::endl;
// Display console close message and wait for a key
console.display_close_message();
return -1;
}
return 0;
}
} my_app;
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